The answer will depend on the units used for the tiles: 20 x 20 what? sq inches, sq cm? Since you have not bothered to provide that crucial bit of information, I cannot provide a more useful answer.
Furthermore, a number of tiles will need cutting and, depending on the level of your skills, you will need some spare.
LXW is the formula for area Then its 4 6X6 tiles = 1 sq ft each so looks a lot like 340 tiles
The area may be calculated using this formula: A = (length of each tile in inches) x (width of each tile in inches) x (number of tiles in one box)
2500 tiles
Each tile covers 81 square inches. You have 1,296 square inches to cover. It will take 16 tiles to cover that area.
Each tile covers 3 cm * c cm = 9 cm2So 16 tiles will cover 16*9 = 144 cm2.Each tile covers 3 cm * c cm = 9 cm2So 16 tiles will cover 16*9 = 144 cm2.Each tile covers 3 cm * c cm = 9 cm2So 16 tiles will cover 16*9 = 144 cm2.Each tile covers 3 cm * c cm = 9 cm2So 16 tiles will cover 16*9 = 144 cm2.
If the tiles are 1 foot squares, it will take 1,650 of them to cover 1,650 square feet. If the tiles are 16 inch square (1-1/3 square feet, each), then it would take 1,238 tiles.
These 327 tiles will cover an area of 383.8 square feet.
Each tile covers 4 square feet. You will need 24.75 tiles to cover the area.
210 of them.
Each tile will cover 2 square feet. So you will need 12.5 tiles.
18*18 = 324 tiles.
It would cover 144 square centimeters.